Irony can be seen in which of the following lines? (Mark all that apply.) a. FAUSTUS. I charge thee wait upon me whilst I live, / To do whatever Faustus shall command, / Be it to make the moon drop from her sphere, / Or the ocean to overwhelm the world. b. FAUSTUS. I charge thee to return, and change thy shape; / Thou art too ugly to attend on me: / Go, and return an old Franciscan friar; / That holy shape becomes a devil best. c. MEPHIST. Therefore the shortest cut for conjuring / Is stoutly to abjure all godliness, / And pray devoutly to the prince of hell. d. FAUSTUS. Go, and return to mighty Lucifer, / And meet me in my study at midnight, / And then resolve me of thy master's mind.